User equipments, base stations and methods for multi-beam/panel pucch transmission

ABSTRACT

A user equipment (UE) is described. Receiving circuitry receives first information including a plurality of the reference signal resource indices. The receiving circuitry also receives second information including a physical uplink control channel (PUCCH) configuration. Transmitting circuitry transmits a PUCCH. A first spatial domain transmission filter is applied based on a first reference signal resource index in the plurality of reference signal resource indices. A second spatial domain transmission filter is applied based on a second reference signal resource index in the plurality of reference signal resource indices.

TECHNICAL FIELD

The present disclosure relates generally to communication systems. Morespecifically, the present disclosure relates to user equipments, basestations and methods for user equipments, base stations and methods formulti-beam/panel physical uplink control channel (PUCCH) transmission.

BACKGROUND ART

Wireless communication devices have become smaller and more powerful inorder to meet consumer needs and to improve portability and convenience.Consumers have become dependent upon wireless communication devices andhave come to expect reliable service, expanded areas of coverage andincreased functionality. A wireless communication system may providecommunication for a number of wireless communication devices, each ofwhich may be serviced by a base station. A base station may be a devicethat communicates with wireless communication devices.

As wireless communication devices have advanced, improvements incommunication capacity, speed, flexibility and/or efficiency have beensought. However, improving communication capacity, speed, flexibilityand/or efficiency may present certain problems.

For example, wireless communication devices may communicate with one ormore devices using a communication structure. However, the communicationstructure used may only offer limited flexibility and/or efficiency. Asillustrated by this discussion, systems and methods that improvecommunication flexibility and/or efficiency may be beneficial.

SUMMARY OF INVENTION

In one example, a user equipment (UE) comprising: receiving circuitryconfigured to receive: first information including a plurality of thereference signal resource indices, and second information including aphysical uplink control channel (PUCCH) configuration; and transmittingcircuitry configured to transmit a PUCCH, wherein a first spatial domaintransmission filter is applied based on a first reference signalresource index in the plurality of reference signal resource indices,and a second spatial domain transmission filter is applied based on asecond reference signal resource index in the plurality of referencesignal resource indices.

In one example, a base station apparatus comprising: transmittingcircuitry configured to transmit: first information including aplurality of the reference signal resource indices, and secondinformation including a physical uplink control channel (PUCCH)configuration; and receiving circuitry configured to receive a PUCCH,wherein a first spatial domain transmission filter is applied based on afirst reference signal resource index in the plurality of referencesignal resource indices, and a second spatial domain transmission filteris applied based on a second reference signal resource index in theplurality of reference signal resource indices.

In one example, a communication method of a user equipment (UE)comprising: receiving first information including a plurality of thereference signal resource indices; receiving second informationincluding a physical uplink control channel (PUCCH) configuration;transmitting a PUCCH, wherein a first spatial domain transmission filteris applied based on a first reference signal resource index in theplurality of reference signal resource indices, and a second spatialdomain transmission filter is applied based on a second reference signalresource index in the plurality of reference signal resource indices.

In one example, a communication method of a base station apparatuscomprising: transmitting first information including a plurality of thereference signal resource indices; transmitting second informationincluding a physical uplink control channel (PUCCH) configuration;receiving a PUCCH, wherein a first spatial domain transmission filter isapplied based on a first reference signal resource index in theplurality of reference signal resource indices, and a second spatialdomain transmission filter is applied based on a second reference signalresource index in the plurality of reference signal resource indices.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a block diagram illustrating one implementation of one or moregNBs and one or more UEs in which systems and methods for signaling maybe implemented.

FIG. 2 shows examples of multiple numerologies.

FIG. 3 is a diagram illustrating one example of a resource grid andresource block.

FIG. 4 shows examples of resource regions.

FIG. 5 illustrates an example of beamforming and quasi-colocation (QCL)type.

FIG. 6 illustrates an example of transmission configuration indication(TCI) states.

FIG. 7 illustrates examples of multiple-beam based sounding referencesignals (SRS) transmission.

FIG. 8 illustrates an example of multiple-beam/panel based physicaluplink shared channel (PUSCH) transmission.

FIG. 9 illustrates examples of multiple-beam/panel based physical uplinkcontrol channel (PUCCH).

FIG. 10 illustrates various components that may be utilized in a UE.

FIG. 11 illustrates various components that may be utilized in a gNB.

FIG. 12 is a block diagram illustrating one implementation of a UE inwhich one or more of the systems and/or methods described herein may beimplemented.

FIG. 13 is a block diagram illustrating one implementation of a gNB inwhich one or more of the systems and/or methods described herein may beimplemented.

FIG. 14 is a block diagram illustrating one implementation of a gNB.

FIG. 15 is a block diagram illustrating one implementation of a UE.

DESCRIPTION OF EMBODIMENTS

A user equipment (UE) is described. The UE includes receiving circuitryconfigured to receive first information including a plurality of thereference signal resource indices. The receiving circuitry is alsoconfigured to receive second information including a physical uplinkcontrol channel (PUCCH) configuration. The UE also includes transmittingcircuitry configured to transmit a PUCCH. A first spatial domaintransmission filter is applied based on a first reference signalresource index in the plurality of reference signal resource indices. Asecond spatial domain transmission filter is applied based on a secondreference signal resource index in the plurality of reference signalresource indices.

Each reference signal index indicated in the first information may beone of an SRS resource index, a channel state information-referencesignal (CSI-RS) index, and a synchronization signal and physicalbroadcast channel (SS/PBCH) block.

A base station apparatus is also described. The base station apparatusincludes transmitting circuitry configured to transmit first informationincluding a plurality of the reference signal resource indices. Thetransmitting circuitry is also configured to transmit second informationincluding a PUCCH configuration. The base station apparatus alsoincludes receiving circuitry configured to receive a PUCCH. A firstspatial domain transmission filter is applied based on a first referencesignal resource index in the plurality of reference signal resourceindices. A second spatial domain transmission filter is applied based ona second reference signal resource index in the plurality of referencesignal resource indices.

A communication method of a UE is also described. The method includesreceiving first information including a plurality of the referencesignal resource indices. The method also includes receiving secondinformation including a physical uplink control channel (PUCCH)configuration. The method further includes transmitting a PUCCH. A firstspatial domain transmission filter is applied based on a first referencesignal resource index in the plurality of reference signal resourceindices. A second spatial domain transmission filter is applied based ona second reference signal resource index in the plurality of referencesignal resource indices.

A communication method of a base station apparatus is also described.The method includes transmitting first information including a pluralityof the reference signal resource indices. The method also includestransmitting second information including a PUCCH configuration. Themethod further includes receiving a PUCCH. A first spatial domaintransmission filter is applied based on a first reference signalresource index in the plurality of reference signal resource indices. Asecond spatial domain transmission filter is applied based on a secondreference signal resource index in the plurality of reference signalresource indices.

The 3rd Generation Partnership Project, also referred to as “3GPP,” is acollaboration agreement that aims to define globally applicabletechnical specifications and technical reports for third and fourthgeneration wireless communication systems. The 3GPP may definespecifications for next generation mobile networks, systems and devices.

3GPP Long Term Evolution (LTE) is the name given to a project to improvethe Universal Mobile Telecommunications System (UMTS) mobile phone ordevice standard to cope with future requirements. In one aspect, UMTShas been modified to provide support and specification for the EvolvedUniversal Terrestrial Radio Access (E-UTRA) and Evolved UniversalTerrestrial Radio Access Network (E-UTRAN).

At least some aspects of the systems and methods disclosed herein may bedescribed in relation to the 3GPP LTE, LTE-Advanced (LTE-A), 5G NewRadio (5th Generation NR) and other standards (e.g., 3GPP Releases 8, 9,10, 11, 12, 13, 14 and/or 15). However, the scope of the presentdisclosure should not be limited in this regard. At least some aspectsof the systems and methods disclosed herein may be utilized in othertypes of wireless communication systems.

A wireless communication device may be an electronic device used tocommunicate voice and/or data to a base station, which in turn maycommunicate with a network of devices (e.g., public switched telephonenetwork (PSTN), the Internet, etc.). In describing systems and methodsherein, a wireless communication device may alternatively be referred toas a mobile station, a UE, an access terminal, a subscriber station, amobile terminal, a remote station, a user terminal, a terminal, asubscriber unit, a mobile device, etc. Examples of wirelesscommunication devices include cellular phones, smart phones, personaldigital assistants (PDAs), laptop computers, netbooks, e-readers,wireless modems, etc. In 3GPP specifications, a wireless communicationdevice is typically referred to as a UE. However, as the scope of thepresent disclosure should not be limited to the 3GPP standards, theterms “UE” and “wireless communication device” may be usedinterchangeably herein to mean the more general term “wirelesscommunication device.” A UE may also be more generally referred to as aterminal device.

In 3GPP specifications, a base station is typically referred to as aNode B, an evolved Node B (eNB), a gNB, a home enhanced or evolved NodeB (HeNB) or some other similar terminology. As the scope of thedisclosure should not be limited to 3GPP standards, the terms “basestation,” “Node B,” “eNB,” “gNB” and “HeNB” may be used interchangeablyherein to mean the more general term “base station.” Furthermore, theterm “base station” may be used to denote an access point. An accesspoint may be an electronic device that provides access to a network(e.g., Local Area Network (LAN), the Internet, etc.) for wirelesscommunication devices. The term “communication device” may be used todenote both a wireless communication device and/or a base station. AneNB may also be more generally referred to as a base station device.

It should be noted that as used herein, a “cell (e.g., serving cell)”may be any communication channel that is specified by standardization orregulatory bodies to be used for International MobileTelecommunications-Advanced (IMT-Advanced) and all of it or a subset ofit may be adopted by 3GPP as licensed bands (e.g., frequency bands) tobe used for communication between an eNB and a UE. It should also benoted that in E-UTRA and E-UTRAN overall description, as used herein, a“cell (e.g., serving cell)” may be defined as “combination of downlinkand optionally uplink resources.” The linking between the carrierfrequency of the downlink resources and the carrier frequency of theuplink resources may be indicated in the system information transmittedon the downlink resources.

The 5th generation communication systems, dubbed NR (New Radiotechnologies) by 3GPP, envision the use of time/frequency/spaceresources to allow for services, such as eMBB (enhanced MobileBroad-Band) transmission, URLLC (Ultra Reliable and Low LatencyCommunication) transmission, and eMTC (massive Machine TypeCommunication) transmission. And, in NR, transmissions for differentservices may be specified (e.g., configured) for one or more bandwidthparts (BWPs) in a serving cell and/or for one or more serving cells. Auser equipment (UE) may perform a reception(s) of a downlink signal(s)and/or a transmission(s) of an uplink signal(s) in the BWP(s) of theserving cell(s).

In order for the services to use the time, frequency, and/or spaceresources efficiently, it would be useful to be able to efficientlycontrol downlink and/or uplink transmissions. Therefore, a procedure forefficient control of downlink and/or uplink transmissions should bedesigned. Accordingly, a detailed design of a procedure for downlinkand/or uplink transmissions may be beneficial.

Various examples of the systems and methods disclosed herein are nowdescribed with reference to the Figures, where like reference numbersmay indicate functionally similar elements. The systems and methods asgenerally described and illustrated in the Figures herein could bearranged and designed in a wide variety of different implementations.Thus, the following more detailed description of severalimplementations, as represented in the Figures, is not intended to limitscope, as claimed, but is merely representative of the systems andmethods.

FIG. 1 is a block diagram illustrating one implementation of one or moregNBs 160 and one or more UEs 102 in which systems and methods forsignaling may be implemented. The one or more UEs 102 communicate withone or more gNBs 160 using one or more physical antennas 122 a-n. Forexample, a UE 102 transmits electromagnetic signals to the gNB 160 andreceives electromagnetic signals from the gNB 160 using the one or morephysical antennas 122 a-n. The gNB 160 communicates with the UE 102using one or more physical antennas 180 a-n. In some implementations,the term “base station,” “eNB,” and/or “gNB” may refer to and/or may bereplaced by the term “Transmission Reception Point (TRP).” For example,the gNB 160 described in connection with FIG. 1 may be a TRP in someimplementations.

The UE 102 and the gNB 160 may use one or more channels and/or one ormore signals 119, 121 to communicate with each other. For example, theUE 102 may transmit information or data to the gNB 160 using one or moreuplink channels 121. Examples of uplink channels 121 include a physicalshared channel (e.g., PUSCH (physical uplink shared channel)) and/or aphysical control channel (e.g., PUCCH (physical uplink controlchannel)), etc. The one or more gNBs 160 may also transmit informationor data to the one or more UEs 102 using one or more downlink channels119, for instance. Examples of downlink channels 119 include a physicalshared channel (e.g., PDCCH (physical downlink shared channel) and/or aphysical control channel (PDCCH (physical downlink control channel)),etc. Other kinds of channels and/or signals may be used.

Each of the one or more UEs 102 may include one or more transceivers118, one or more demodulators 114, one or more decoders 108, one or moreencoders 150, one or more modulators 154, a data buffer 104 and a UEoperations module 124. For example, one or more reception and/ortransmission paths may be implemented in the UE 102. For convenience,only a single transceiver 118, decoder 108, demodulator 114, encoder 150and modulator 154 are illustrated in the UE 102, though multipleparallel elements (e.g., transceivers 118, decoders 108, demodulators114, encoders 150 and modulators 154) may be implemented.

The transceiver 118 may include one or more receivers 120 and one ormore transmitters 158. The one or more receivers 120 may receive signalsfrom the gNB 160 using one or more antennas 122 a-n. For example, thereceiver 120 may receive and downconvert signals to produce one or morereceived signals 116. The one or more received signals 116 may beprovided to a demodulator 114. The one or more transmitters 158 maytransmit signals to the gNB 160 using one or more physical antennas 122a-n. For example, the one or more transmitters 158 may upconvert andtransmit one or more modulated signals 156.

The demodulator 114 may demodulate the one or more received signals 116to produce one or more demodulated signals 112. The one or moredemodulated signals 112 may be provided to the decoder 108. The UE 102may use the decoder 108 to decode signals. The decoder 108 may producedecoded signals 110, which may include a UE-decoded signal 106 (alsoreferred to as a first UE-decoded signal 106). For example, the firstUE-decoded signal 106 may comprise received payload data, which may bestored in a data buffer 104. Another signal included in the decodedsignals 110 (also referred to as a second UE-decoded signal 110) maycomprise overhead data and/or control data. For example, the secondUE-decoded signal 110 may provide data that may be used by the UEoperations module 124 to perform one or more operations.

In general, the UE operations module 124 may enable the UE 102 tocommunicate with the one or more gNBs 160. The UE operations module 124may include one or more of a UE scheduling module 126.

The UE scheduling module 126 may perform downlink reception(s) anduplink transmission(s). The downlink reception(s) include reception ofdata, reception of downlink control information, and/or reception ofdownlink reference signals. Also, the uplink transmissions includetransmission of data, transmission of uplink control information, and/ortransmission of uplink reference signals.

Also, in a carrier aggregation (CA), the gNB 160 and the UE 102 maycommunicate with each other using one or more serving cells. Here theone or more serving cells may include one primary cell and one or moresecondary cells. For example, the gNB 160 may transmit, by using the RRCmessage, information used for configuring one or more secondary cells toform together with the primary cell a set of serving cells. Namely, theset of serving cells may include one primary cell and one or moresecondary cells. Here, the primary cell may be always activated. Also,the gNB 160 may activate one or more secondary cell within theconfigured secondary cells. Here, in the downlink, a carriercorresponding to the primary cell may be the downlink primary componentcarrier (i.e., the DL PCC), and a carrier corresponding to a secondarycell may be the downlink secondary component carrier (i.e., the DL SCC).Also, in the uplink, a carrier corresponding to the primary cell may bethe uplink primary component carrier (i.e., the UL PCC), and a carriercorresponding to the secondary cell may be the uplink secondarycomponent carrier (i.e., the UL SCC).

In a radio communication system, physical channels (uplink physicalchannels and/or downlink physical channels) may be defined. The physicalchannels (uplink physical channels and/or downlink physical channels)may be used for transmitting information that is delivered from a higherlayer.

In an example, in uplink, a Physical Random Access Channel (PRACH) maybe defined. In some approaches, the PRACH (e.g., the random accessprocedure) may be used for an initial access connection establishmentprocedure, a handover procedure, a connection re-establishment, a timingadjustment (e.g., a synchronization for an uplink transmission, for ULsynchronization) and/or for requesting an uplink shared channel (UL-SCH)resource (e.g., the uplink physical shared channel (PSCH) (e.g., PUSCH)resource).

In another example, a physical uplink control channel (PUCCH) may bedefined. The PUCCH may be used for transmitting uplink controlinformation (UCI). The UCI may include hybrid automatic repeatrequest-acknowledgement (HARQ-ACK), channel state information (CSI)and/or a scheduling request (SR). The HARQ-ACK is used for indicating apositive acknowledgement (ACK) or a negative acknowledgment (NACK) fordownlink data (e.g., Transport block(s), Medium Access Control ProtocolData Unit (MAC PDU) and/or Downlink Shared Channel (DL-SCH)). The CSI isused for indicating state of downlink channel (e.g., a downlinksignal(s)). Also, the SR is used for requesting resources of uplink data(e.g., Transport block(s), MAC PDU and/or Uplink Shared Channel(UL-SCH)).

Here, the DL-SCH and/or the UL-SCH may be a transport channel that isused in the MAC layer. Also, a transport block(s) (TB(s)) and/or a MACPDU may be defined as a unit(s) of the transport channel used in the MAClayer. The transport block may be defined as a unit of data deliveredfrom the MAC layer to the physical layer. The MAC layer may deliver thetransport block to the physical layer (e.g., the MAC layer delivers thedata as the transport block to the physical layer). In the physicallayer, the transport block may be mapped to one or more codewords.

In downlink, a physical downlink control channel (PDCCH) may be defined.The PDCCH may be used for transmitting downlink control information(DCI). Here, more than one DCI formats may be defined for DCItransmission on the PDCCH. Namely, fields may be defined in the DCIformat(s), and the fields are mapped to the information bits (e.g., DCIbits).

Additionally or alternatively, a physical downlink shared channel(PDSCH) and a physical uplink shared channel (PUSCH) may be defined. Forexample, in a case that the PDSCH (e.g., the PDSCH resource) isscheduled by using the DCI format(s) for the downlink, the UE 102 mayreceive the downlink data, on the scheduled PDSCH (e.g., the PDSCHresource). Additionally or alternatively, in a case that the PUSCH(e.g., the PUSCH resource) is scheduled by using the DCI format(s) forthe uplink, the UE 102 transmits the uplink data, on the scheduled PUSCH(e.g., the PUSCH resource). For example, the PDSCH may be used totransmit the downlink data (e.g., DL-SCH(s), a downlink transportblock(s)). Additionally or alternatively, the PUSCH may be used totransmit the uplink data (e.g., UL-SCH(s), an uplink transportblock(s)).

Furthermore, the PDSCH and/or the PUSCH may be used to transmitinformation of a higher layer (e.g., a radio resource control (RRC))layer, and/or a MAC layer). For example, the PDSCH (e.g., from the gNB160 to the UE 102) and/or the PUSCH (e.g., from the UE 102 to the gNB160) may be used to transmit a RRC message (a RRC signal). Additionallyor alternatively, the PDSCH (e.g., from the gNB 160 to the UE 102)and/or the PUSCH (e.g., from the UE 102 to the gNB 160) may be used totransmit a MAC control element (a MAC CE). Here, the RRC message and/orthe MAC CE are also referred to as a higher layer signal.

In some approaches, a physical broadcast channel (PBCH) may be defined.For example, the PBCH may be used for broadcasting the MIB (masterinformation block). Here, system information may be divided into the MIBand a number of SIB(s) (system information block(s)). For example, theMIB may be used for carrying include minimum system information.Additionally or alternatively, the SIB(s) may be used for carryingsystem information messages.

In some approaches, in downlink, synchronization signals (SSs) may bedefined. The SS may be used for acquiring time and/or frequencysynchronization with a cell. Additionally or alternatively, the SS maybe used for detecting a physical layer cell ID of the cell. SSs mayinclude a primary SS and a secondary SS.

An SS/PBCH block may be defined as a set of a primary SS, a secondary SSand a PBCH. Tin the time domain, the SS/PBCH block consists of 4 OFDMsymbols, numbered in increasing order from 0 to 3 within the SS/PBCHblock, where PSS, SSS, and PBCH with associated demodulation referencesignal (DMRS) are mapped to symbols. One or more SS/PBCH block may bemapped within a certain time duration (e.g., 5 msec).

Additionally, the SS/PBCH block can be used for beam measurement, radioresource management (RRM) measurement and radio link control (RLM)measurement. Specifically, the secondary synchronization signal (SSS)can be used for the measurement.

In the radio communication for uplink, UL RS(s) may be used as uplinkphysical signal(s). Additionally or alternatively, in the radiocommunication for downlink, DL RS(s) may be used as downlink physicalsignal(s). The uplink physical signal(s) and/or the downlink physicalsignal(s) may not be used to transmit information that is provided fromthe higher layer, but is used by a physical layer.

Here, the downlink physical channel(s) and/or the downlink physicalsignal(s) described herein may be assumed to be included in a downlinksignal (e.g., a DL signal(s)) in some implementations for the sake ofsimple descriptions. Additionally or alternatively, the uplink physicalchannel(s) and/or the uplink physical signal(s) described herein may beassumed to be included in an uplink signal (i.e. an UL signal(s)) insome implementations for the sake of simple descriptions.

The UE operations module 124 may provide information 148 to the one ormore receivers 120. For example, the UE operations module 124 may informthe receiver(s) 120 when to receive retransmissions.

The UE operations module 124 may provide information 138 to thedemodulator 114. For example, the UE operations module 124 may informthe demodulator 114 of a modulation pattern anticipated fortransmissions from the gNB 160.

The UE operations module 124 may provide information 136 to the decoder108. For example, the UE operations module 124 may inform the decoder108 of an anticipated encoding for transmissions from the gNB 160.

The UE operations module 124 may provide information 142 to the encoder150. The information 142 may include data to be encoded and/orinstructions for encoding. For example, the UE operations module 124 mayinstruct the encoder 150 to encode transmission data 146 and/or otherinformation 142. The other information 142 may include PDSCH HARQ-ACKinformation.

The encoder 150 may encode transmission data 146 and/or otherinformation 142 provided by the UE operations module 124. For example,encoding the data 146 and/or other information 142 may involve errordetection and/or correction coding, mapping data to space, time and/orfrequency resources for transmission, multiplexing, etc. The encoder 150may provide encoded data 152 to the modulator 154.

The UE operations module 124 may provide information 144 to themodulator 154. For example, the UE operations module 124 may inform themodulator 154 of a modulation type (e.g., constellation mapping) to beused for transmissions to the gNB 160. The modulator 154 may modulatethe encoded data 152 to provide one or more modulated signals 156 to theone or more transmitters 158.

The UE operations module 124 may provide information 140 to the one ormore transmitters 158. This information 140 may include instructions forthe one or more transmitters 158. For example, the UE operations module124 may instruct the one or more transmitters 158 when to transmit asignal to the gNB 160. For instance, the one or more transmitters 158may transmit during a UL subframe. The one or more transmitters 158 mayupconvert and transmit the modulated signal(s) 156 to one or more gNBs160.

Each of the one or more gNBs 160 may include one or more transceivers176, one or more demodulators 172, one or more decoders 166, one or moreencoders 109, one or more modulators 113, a data buffer 162 and a gNBoperations module 182. For example, one or more reception and/ortransmission paths may be implemented in a gNB 160. For convenience,only a single transceiver 176, decoder 166, demodulator 172, encoder 109and modulator 113 are illustrated in the gNB 160, though multipleparallel elements (e.g., transceivers 176, decoders 166, demodulators172, encoders 109 and modulators 113) may be implemented.

The transceiver 176 may include one or more receivers 178 and one ormore transmitters 117. The one or more receivers 178 may receive signalsfrom the UE 102 using one or more physical antennas 180 a-n. Forexample, the receiver 178 may receive and downconvert signals to produceone or more received signals 174. The one or more received signals 174may be provided to a demodulator 172. The one or more transmitters 117may transmit signals to the UE 102 using one or more physical antennas180 a-n. For example, the one or more transmitters 117 may upconvert andtransmit one or more modulated signals 115.

The demodulator 172 may demodulate the one or more received signals 174to produce one or more demodulated signals 170. The one or moredemodulated signals 170 may be provided to the decoder 166. The gNB 160may use the decoder 166 to decode signals. The decoder 166 may produceone or more decoded signals 164, 168. For example, a first eNB-decodedsignal 164 may comprise received payload data, which may be stored in adata buffer 162. A second eNB-decoded signal 168 may comprise overheaddata and/or control data. For example, the second eNB-decoded signal 168may provide data (e.g., PDSCH HARQ-ACK information) that may be used bythe gNB operations module 182 to perform one or more operations.

In general, the gNB operations module 182 may enable the gNB 160 tocommunicate with the one or more UEs 102. The gNB operations module 182may include one or more of a gNB scheduling module 194. The gNBscheduling module 194 may perform scheduling of downlink and/or uplinktransmissions as described herein.

The gNB operations module 182 may provide information 188 to thedemodulator 172. For example, the gNB operations module 182 may informthe demodulator 172 of a modulation pattern anticipated fortransmissions from the UE(s) 102.

The gNB operations module 182 may provide information 186 to the decoder166. For example, the gNB operations module 182 may inform the decoder166 of an anticipated encoding for transmissions from the UE(s) 102.

The gNB operations module 182 may provide information 101 to the encoder109. The information 101 may include data to be encoded and/orinstructions for encoding. For example, the gNB operations module 182may instruct the encoder 109 to encode information 101, includingtransmission data 105.

The encoder 109 may encode transmission data 105 and/or otherinformation included in the information 101 provided by the gNBoperations module 182. For example, encoding the data 105 and/or otherinformation included in the information 101 may involve error detectionand/or correction coding, mapping data to space, time and/or frequencyresources for transmission, multiplexing, etc. The encoder 109 mayprovide encoded data 111 to the modulator 113. The transmission data 105may include network data to be relayed to the UE 102.

The gNB operations module 182 may provide information 103 to themodulator 113. This information 103 may include instructions for themodulator 113. For example, the gNB operations module 182 may inform themodulator 113 of a modulation type (e.g., constellation mapping) to beused for transmissions to the UE(s) 102. The modulator 113 may modulatethe encoded data 111 to provide one or more modulated signals 115 to theone or more transmitters 117.

The gNB operations module 182 may provide information 192 to the one ormore transmitters 117. This information 192 may include instructions forthe one or more transmitters 117. For example, the gNB operations module182 may instruct the one or more transmitters 117 when to (or when notto) transmit a signal to the UE(s) 102. The one or more transmitters 117may upconvert and transmit the modulated signal(s) 115 to one or moreUEs 102.

It should be noted that a DL subframe may be transmitted from the gNB160 to one or more UEs 102 and that a UL subframe may be transmittedfrom one or more UEs 102 to the gNB 160. Furthermore, both the gNB 160and the one or more UEs 102 may transmit data in a standard specialsubframe.

It should also be noted that one or more of the elements or partsthereof included in the eNB(s) 160 and UE(s) 102 may be implemented inhardware. For example, one or more of these elements or parts thereofmay be implemented as a chip, circuitry or hardware components, etc. Itshould also be noted that one or more of the functions or methodsdescribed herein may be implemented in and/or performed using hardware.For example, one or more of the methods described herein may beimplemented in and/or realized using a chipset, an application-specificintegrated circuit (ASIC), a large-scale integrated circuit (LSI) orintegrated circuit, etc.

FIG. 2 shows examples of multiple numerologies 201. As shown in FIG. 2 ,multiple numerologies 201 (e.g., multiple subcarrier spacing) may besupported. For example, μ (e.g., a subcarrier space configuration) and acyclic prefix (e.g., the μ and the cyclic prefix for a carrier bandwidthpart) may be configured by higher layer parameters (e.g., a RRC message)for the downlink and/or the uplink. Here, 15 kHz may be a referencenumerology 201. For example, an RE of the reference numerology 201 maybe defined with a subcarrier spacing of 15 kHz in a frequency domain and2048 Ts+CP length (e.g., 160 Ts or 144 Ts) in a time domain, where Tsdenotes a baseband sampling time unit defined as 1/(15000*2048) seconds.

Additionally or alternatively, a number of OFDM symbol(s) 203 per slot(N_(symb) ^(slot)) may be determined based on the μ (e.g., thesubcarrier space configuration). Here, for example, a slot configuration0 (e.g., the number of OFDM symbols 203 per slot may be 14).

FIG. 3 is a diagram illustrating one example of a resource grid 301 andresource block 391 (e.g., for the downlink and/or the uplink). Theresource grid 301 and resource block 391 illustrated in FIG. 3 may beutilized in some implementations of the systems and methods disclosedherein.

In FIG. 3 , one subframe 369 may include N_(symbol) ^(subframe,μ)symbols 387. Additionally or symbol alternatively, a resource block 391may include a number of resource elements (RE) 389. Here, in thedownlink, the OFDM access scheme with cyclic prefix (CP) may beemployed, which may be also referred to as CP-OFDM. A downlink radioframe may include multiple pairs of downlink resource blocks (RBs) 391which are also referred to as physical resource blocks (PRBs). Thedownlink RB pair is a unit for assigning downlink radio resources,defined by a predetermined bandwidth (RB bandwidth) and a time slot. Thedownlink RB pair may include two downlink RBs 391 that are continuous inthe time domain. Additionally or alternatively, the downlink RB 391 mayinclude twelve sub-carriers in frequency domain and seven (for normalCP) or six (for extended CP) OFDM symbols in time domain. A regiondefined by one sub-carrier in frequency domain and one OFDM symbol intime domain is referred to as a resource element (RE) 389 and isuniquely identified by the index pair (k,l), where k and l are indicesin the frequency and time domains, respectively.

Additionally or alternatively, in the uplink, in addition to CP-OFDM, aSingleCarrier Frequency Division Multiple Access (SC-FDMA) access schememay be employed, which is also referred to as Discrete FourierTransform-Spreading OFDM (DFT-S-OFDM). An uplink radio frame may includemultiple pairs of uplink resource blocks 391. The uplink RB pair is aunit for assigning uplink radio resources, defined by a predeterminedbandwidth (RB bandwidth) and a time slot. The uplink RB pair may includetwo uplink RBs 391 that are continuous in the time domain. The uplink RBmay include twelve sub-carriers in frequency domain and seven (fornormal CP) or six (for extended CP) OFDM/DFT-S-OFDM symbols in timedomain. A region defined by one sub-carrier in the frequency domain andone OFDM/DFT-S-OFDM symbol in the time domain is referred to as aresource element (RE) 389 and is uniquely identified by the index pair(k,l) in a slot, where k and l are indices in the frequency and timedomains respectively.

Each element in the resource grid 301 (e.g., antenna port p) and thesubcarrier configuration μ is called a resource element 389 and isuniquely identified by the index pair (k,l) where k=0, . . . , N_(RB)^(μ)N_(SC) ^(RB)−1 is the index in the frequency domain and l refers tothe symbol position in the time domain. The resource element (k,l) 389on the antenna port p and the subcarrier spacing configuration μ isdenoted (k,l)p,μ. The physical resource block 391 is defined as N_(SC)^(RB)=12 consecutive subcarriers in the frequency domain. The physicalresource blocks 391 are numbered from 0 to N_(RB) ^(μ)−1 in thefrequency domain. The relation between the physical resource blocknumber n_(PRB) in the frequency domain and the resource element (k,l) isgiven by

$n_{PRB} = {\left\lfloor \frac{k}{N_{SC}^{RB}} \right\rfloor.}$

In the NR, the following reference signals may be defined:

-   -   NZP CSI-RS (non-zero power channel state information reference        signal)    -   ZP CSI-RS (Zero-power channel state information reference        signal)    -   DMRS (demodulation reference signal)    -   SRS (sounding reference signal)

NZP CSI-RS may be used for channel tracking (e.g., synchronization),measurement to obtain CSI (CSI measurement including channel measurementand interference measurement), and/or measurement to obtain the beamforming performance. NZP CSI-RS may be transmitted in the downlink (gNBto UE). NZP CSI-RS may be transmitted in an aperiodic or semi-persistentor periodic manner. Additionally, the NZP CSI-RS can be used for radioresource management (RRM) measurement and radio link control (RLM)measurement.

ZP CSI-RS may be used for interference measurement and transmitted inthe downlink (gNB to UE). ZP CSI-RS may be transmitted in an aperiodicor semi-persistent or periodic manner.

DMRS may be used for demodulation for the downlink (gNB to UE), theuplink (UE to gNB), and the sideling (UE to UE).

SRS may be used for channel sounding and beam management. The SRS may betransmitted in the uplink (UE to gNB).

In some approaches, the DCI may be used. The following DCI formats maybe defined:

-   -   DCI format 0_0    -   DCI format 0_1    -   DCI format 0_2    -   DCI format 1_0    -   DCI format 1_1    -   DCI format 1_2    -   DCI format 2_0    -   DCI format 2_1    -   DCI format 2_2    -   DCI format 2_3    -   DCI format 2_4    -   DCI format 2_5    -   DCI format 2_6    -   DCI format 3_0    -   DCI format 3_1

DCI format 1_0 may be used for the scheduling of PUSCH in one cell. TheDCI may be transmitted by means of the DCI format 0_0 with cyclicredundancy check (CRC) scrambled by Cell Radio Network TemporaryIdentifiers (C-RNTI) or Configured Scheduling RNTI (CS-RNTI) orModulation and Coding Scheme-Cell RNTI (MCS-C-RNTI).

DCI format 0_1 may be used for the scheduling of one or multiple PUSCHin one cell, or indicating configured grant downlink feedbackinformation (CG-DFI) to a UE. The DCI may be transmitted by means of theDCI format 0_1 with CRC scrambled by C-RNTI or CS-RNTI orsemi-persistent channel state information (SP-CSI-RNTI) or MCS-C-RNTI.The DCI format 0_2 may be used for CSI request (e.g., aperiodic CSIreporting or semi-persistent CSI request). The DCI format 0_2 may beused for SRS request (e.g., aperiodic SRS transmission).

DCI format 0_2 may be used for the scheduling of PUSCH in one cell. TheDCI may be transmitted by means of the DCI format 0_2 with CRC scrambledby C-RNTI or CS-RNTI or SP-CSI-RNTI or MCS-C-RNTI. The DCI format 0_2may be used for scheduling of PUSCH with high priority and/or lowlatency (e.g., URLLC). The DCI format 0_2 may be used for CSI request(e.g., aperiodic CSI reporting or semi-persistent CSI request). The DCIformat 0_2 may be used for SRS request (e.g., aperiodic SRStransmission).

Additionally, for example, the DCI included in the DCI format 0_Y (Y=0,1, 2, . . . ) may be a BWP indicator (e.g., for the PUSCH). Additionallyor alternatively, the DCI included in the DCI format 0_Y may be afrequency domain resource assignment (e.g., for the PUSCH). Additionallyor alternatively, the DCI included in the DCI format 0_Y may be a timedomain resource assignment (e.g., for the PUSCH). Additionally oralternatively, the DCI included in the DCI format 0_Y may be amodulation and coding scheme (e.g., for the PUSCH). Additionally oralternatively, the DCI included in the DCI format 0_Y may be a new dataindicator. Additionally or alternatively, the DCI included in the DCIformat 0_Y may be a TPC command for scheduled PUSCH. Additionally oralternatively, the DCI included in the DCI format 0_Y may be a CSIrequest that is used for requesting the CSI reporting. Additionally oralternatively, as described below, the DCI included in the DCI format0_Y may be information used for indicating an index of a configurationof a configured grant. Additionally or alternatively, the DCI includedin the DCI format 0_Y may be the priority indication (e.g., for thePUSCH transmission and/or for the PUSCH reception).

DCI format 1_0 may be used for the scheduling of PDSCH in one DL cell.The DCI is transmitted by means of the DCI format 1_0 with CRC scrambledby C-RNTI or CS-RNTI or MCS-C-RNTI. The DCI format 1_0 may be used forrandom access procedure initiated by a PDCCH order. Additionally oralternately, the DCI may be transmitted by means of the DCI format 1_0with CRC scrambled by system information RNTI (SI-RNTI), and the DCI maybe used for system information transmission and/or reception.Additionally or alternately, the DCI may be transmitted by means of theDCI format 1_0 with CRC scrambled by random access RNTI (RA-RNTI) forrandom access response (RAR) (e.g., Msg 2) or msgB-RNTI for 2-step RACH.Additionally or alternately, the DCI may be transmitted by means of theDCI format 1_0 with CRC scrambled by temporally cell RNTI (TC-RNTI), andthe DCI may be used for msg3 transmission by a UE 102.

DCI format 1_1 may be used for the scheduling of PDSCH in one cell. TheDCI may be transmitted by means of the DCI format 1_1 with CRC scrambledby C-RNTI or CS-RNTI or MCS-C-RNTI. The DCI format 1_1 may be used forSRS request (e.g., aperiodic SRS transmission).

DCI format 1_2 may be used for the scheduling of PDSCH in one cell. TheDCI may be transmitted by means of the DCI format 1_2 with CRC scrambledby C-RNTI or CS-RNTI or SP-CSI-RNTI or MCS-C-RNTI. The DCI format 1_2may be used for scheduling of PDSCH with high priority and/or lowlatency (e.g., URLLC). The DCI format 1_2 may be used for SRS request(e.g., aperiodic SRS transmission).

Additionally, for example, the DCI included in the DCI format 1_X may bea BWP indicator (e.g., for the PDSCH). Additionally or alternatively,the DCI included in the DCI format 1_X may be frequency domain resourceassignment (e.g., for the PDSCH). Additionally or alternatively, the DCIincluded in the DCI format 1_X may be a time domain resource assignment(e.g., for the PDSCH). Additionally or alternatively, the DCI includedin the DCI format 1_X may be a modulation and coding scheme (e.g., forthe PDSCH). Additionally or alternatively, the DCI included in the DCIformat 1_X may be a new data indicator. Additionally or alternatively,the DCI included in the DCI format 1_X may be a TPC command forscheduled PUCCH. Additionally or alternatively, the DCI included in theDCI format 1_X may be a CSI request that is used for requesting (e.g.,triggering) transmission of the CSI (e.g., CSI reporting (e.g.,aperiodic CSI reporting)). Additionally or alternatively, the DCIincluded in the DCI format 1_X may be a PUCCH resource indicator.Additionally or alternatively, the DCI included in the DCI format 1_Xmay be a PDSCH-to-HARQ feedback timing indicator. Additionally oralternatively, the DCI included in the DCI format 1_X may be thepriority indication (e.g., for the PDSCH transmission and/or the PDSCHreception). Additionally or alternatively, the DCI included in the DCIformat 1_X may be the priority indication (e.g., for the HARQ-ACKtransmission for the PDSCH and/or the HARQ-ACK reception for the PDSCH).

DCI format 2_0 may be used for notifying the slot format, channeloccupancy time (COT) duration for unlicensed band operation, availableresource block (RB) set, and search space group switching. The DCI maytransmitted by means of the DCI format 2_0 with CRC scrambled by slotformat indicator RNTI (SFI-RNTI).

DCI format 2_1 may be used for notifying the physical resource block(s)(PRB(s)) and orthogonal frequency division multiplexing (OFDM) symbol(s)where the UE may assume no transmission is intended for the UE. The DCIis transmitted by means of the DCI format 2_1 with CRC scrambled byinterrupted transmission RNTI (INT-RNTI).

DCI format 2_2 may be used for the transmission of transmission powercontrol (TPC) commands for PUCCH and PUSCH. The following information istransmitted by means of the DCI format 2_2 with CRC scrambled byTPC-PUSCH-RNTI or TPCPUCCH-RNTI. In a case that the CRC is scrambled byTPC-PUSCH-RNTI, the indicated one or more TPC commands may be applied tothe TPC loop for PUSCHs. In a case that the CRC is scrambled byTPC-PUCCH-RNTI, the indicated one or more TPC commands may be applied tothe TPC loop for PUCCHs.

DCI format 2_3 may be used for the transmission of a group of TPCcommands for SRS transmissions by one or more UEs. Along with a TPCcommand, a SRS request may also be transmitted. The DCI may be istransmitted by means of the DCI format 2_3 with CRC scrambled byTPC-SRS-RNTI.

DCI format 2_4 may be used for notifying the PRB(s) and OFDM symbol(s)where the UE cancels the corresponding UL transmission. The DCI may betransmitted by means of the DCI format 2_4 with CRC scrambled bycancellation indication RNTI (CI-RNTI).

DCI format 2_5 may be used for notifying the availability of softresources for integrated access and backhaul (IAB) operation. The DCImay be transmitted by means of the DCI format 2_5 with CRC scrambled byavailability indication RNTI (AI-RNTI).

DCI format 2_6 may be used for notifying the power saving informationoutside discontinuous reception (DRX) Active Time for one or more UEs.The DCI may transmitted by means of the DCI format 2_6 with CRCscrambled by power saving RNTI (PS-RNTI).

DCI format 3_0 may be used for scheduling of NR physical sidelinkcontrol channel (PSCCH) and NR physical sidelink shared channel (PSSCH)in one cell. The DCI may be transmitted by means of the DCI format 3_0with CRC scrambled by sidelink RNTI (SL-RNTI) or sidelink configuredscheduling RNTI (SL-CS-RNTI). This may be used for vehicular toeverything (V2X) operation for NR V2X UE(s).

DCI format 3_1 may be used for scheduling of LTE PSCCH and LTE PSSCH inone cell. The following information is transmitted by means of the DCIformat 3_1 with CRC scrambled by SL-L-CS-RNTI. This may be used for LTEV2X operation for LTE V2X UE(s).

The UE 102 may monitor one or more DCI formats on common search spaceset (CSS) and/or UE-specific search space set (USS). A set of PDCCHcandidates for a UE to monitor may be defined in terms of PDCCH searchspace sets. A search space set can be a CSS set or a USS set. A UE 102monitors PDCCH candidates in one or more of the following search spacessets. The search space may be defined by a PDCCH configuration in a RRClayer.

A Type0-PDCCH CSS set may be configured by pdcch-ConfigSIB1 in MIB or bysearchSpaceSIB1 in PDCCH-ConfigCommon or by searchSpaceZero inPDCCH-ConfigCommon for a DCI format with CRC scrambled by a SI-RNTI onthe primary cell of the MCG

A Type0A-PDCCH CSS set may be configured bysearchSpaceOtherSystemInformation in PDCCH-ConfigCommon for a DCI formatwith CRC scrambled by a SI-RNTI on the primary cell of the MCG

A Type1-PDCCH CSS set may be configured by ra-SearchSpace inPDCCH-ConfigCommon for a DCI format with CRC scrambled by a RA-RNTI or aTC-RNTI on the primary cell

A Type2-PDCCH CSS set may be configured by pagingSearchSpace inPDCCH-ConfigCommon for a DCI format with CRC scrambled by a P-RNTI onthe primary cell of the MCG

A Type3-PDCCH CSS set may be configured by SearchSpace in PDCCH-Configwith searchSpaceType=common for DCI formats with CRC scrambled byINT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI,CI-RNTI, or PS-RNTI and, only for the primary cell, C-RNTI, MCS-C-RNTI,or CS-RNTI(s), and A USS set may be configured by SearchSpace inPDCCH-Config with searchSpaceType=ue-Specific for DCI formats with CRCscrambled by C-RNTI, MCS-C-RNTI, SP-CSI-RNTI, CS-RNTI(s), SL-RNTI,SL-CS-RNTI, or SLL-CS-RNTI.

The UE 102 may monitor a set of candidates of the PDCCH in one or morecontrol resource sets (e.g., CORESETs) on the active DL bandwidth part(BWP) on each activated serving cell according to corresponding searchspace sets. The CORESETs may be configured from gNB 160 to a UE 102, andthe CSS set(s) and the USS set(s) are defined in the configured CORESET.One or more CORESET may be configured in a RRC layer.

FIG. 4 shows examples of resource regions (e.g., resource region of thedownlink). One or more sets 401 of PRB(s) 491 (e.g., a control resourceset (e.g., CORESET)) may be configured for DL control channel monitoring(e.g., the PDCCH monitoring). For example, the CORESET is, in thefrequency domain and/or the time domain, a set 401 of PRBs 491 withinwhich the UE 102 attempts to decode the DCI (e.g., the DCI format(s),the PDCCH(s)), where the PRBs 491 may or may not be frequency contiguousand/or time contiguous, a UE 102 may be configured with one or morecontrol resource sets (e.g., the CORESETs) and one DCI message may bemapped within one control resource set. In the frequency-domain, a PRB491 is the resource unit size (which may or may not include DM-RS) forthe DL control channel.

FIG. 5 illustrates an example of beamforming and quasi-colocation (QCL)type. In NR, the gNB 560 and UE 502 may perform beamforming by havingmultiple antenna elements. The beamforming is operated by using adirectional antenna(s) or applying phase shift for each antenna elementsuch that a high electric field strength to a certain spatial directioncan be achieved. Here, the beamforming may be rephrased by “spatialdomain transmission filter” or “spatial domain filter.”

In the downlink, the gNB 560 may apply the transmission beamforming andtransmit the DL channels and/or DL signals and a UE 502 may also applythe reception beamforming and receive the DL channels and/or DL signals.

In the uplink, a UE 560 may apply the transmission beamforming andtransmit the UL channels and/or UL signals and a gNB 560 may also applythe reception beamforming and receive the UL channels and/or UL signals.

The beam correspondence may be defined according to the UE capability.The beam correspondence may be defined as the follows. In the downlink,a UE 502 can decide the transmission beamforming for UL channels and/orUL signals from the reception beamforming for DL channels and/or DLsignals. In the uplink, a gNB 560 can decide the transmissionbeamforming for DL channels and/or DL signals from the receptionbeamforming for UL channels and/or UL signals.

To adaptively switch, refine, or operate beamforming, beam managementmay be performed. For the beam management, NZP-CSI-RS(s) and SRS(s) maybe used to measure the channel quality in the downlink and uplinkrespectively. Specifically, in the downlink, gNB 560 may transmit one ormore NZP CSI-RSs. The UE 502 may measure the one or more NZP CSI-RSs. Inaddition, the UE 502 may change the beamforming to receive each NZPCSI-RS. The UE 502 can identify which combination of transmissionbeamforming at gNB side corresponding to NZP CSI-RS corresponding andthe reception beamforming at the UE side. In the uplink, a UE 502 maytransmit one or more SRSs. The gNB 502 measure the one or more SRSs. Inaddition, the gNB 560 may change the reception beamforming to receiveeach SRS. The gNB 560 can identify which combination of transmissionbeamforming at gNB side corresponding to SRS corresponding and thereception beamforming at the gNB side.

To keep the link with transmission beam and reception for thecommunication between a gNB 560 and a UE 502, the quasi-colocation (QCL)assumption may be defined. Two antenna ports are said to be quasico-located if the large-scale properties of the channel over which asymbol on one antenna port is conveyed can be inferred from the channelover which a symbol on the other antenna port is conveyed. Thelarge-scale properties include one or more of delay spread, Dopplerspread, Doppler shift, average gain, average delay, and spatial Rxparameters. The following QCL types may be defined:

-   -   QCL type A (‘QCL-TypeA’): {Doppler shift, Doppler spread,        average delay, delay spread}    -   QCL type B (‘QCL-TypeB’): {Doppler shift, Doppler spread}    -   QCL type C (‘QCL-TypeC’): {Doppler shift, average delay}    -   QCL type D (‘QCL-TypeD’) {Spatial Rx parameter}

QCL type D is related to the beam management. For example, two NZPCSI-RS resources are configured to a UE 502 and a NZP CSI-RS resource #1and a NZP CSI-RS resource #2 are used for beam #1 and beam #2,respectively. At a UE side, Rx beam #1 is used for the reception of theNZP CSI-RS #1 and Rx beam #2 is used for reception of the NZP CSI-RS #2for beam management. Here, the NZP CSI-RS resource #1 and NZP CSI-RSresource #2 imply Tx beam #1 and Tx beam #2 respectively. QCL type Dassumption may be used for PDCCH and PDSCH and DL signals reception.When a UE 502 receives a PDCCH with the QCL type D assumption of NZPCSI-RS #1, the UE 502 may use the Rx beam #2 for the PDCCH reception.

For this purpose, a gNB 560 may configure transmission configurationindication (TCI) states to a UE 502. A TCI state may include thefollowing:

-   -   One or more reference resource indices;    -   QCL type for each of the one or more reference resource indices.

For example, if a TCI state includes QCL type D and NZP CSI-RS #1 andindicated to the UE 502, the UE 502 may apply Rx beam #1 to thereception of a PDCCH, a PDSCH, and/or DL signal(s). In other words, a UE502 can determine the reception beam by using TCI states for receptionof PDCCH, PDSCH, and/or DL signals.

FIG. 6 illustrates an example of transmission configuration indication(TCI) states. The seven TCI states may be configured and one of theconfigured TCI states may be used to receive PDCCH, PDSCH, and/or DLsignals. For example, if gNB 560 indicates TCI state #1, a UE 502 mayassume the PDCCH, PDSCH, and/or DL signals is (are) quasi-colocated withthe NZP CSI-RS corresponding to the NZP CSI-RS resource #1. A UE 502 maydetermine to use the reception beam when the UE 502 receives the NZPCSI-RS corresponding to the NZP CSI-RS resource #1.

Next, how to indicate one TCI state to a UE 502 from gNB 560. In the RRCmessages, N TCI states may be configured by a RRC message. A gNB 560 mayindicate one of the configured TCI states by DCI (e.g., DCI format 1_1or DCI format 1_2). Alternately or additionally, the gNB 560 mayindicate one of the configured TCI by MAC CE. Alternately oradditionally, the MAC CE selects more than one TCI states from theconfigured TCI states and DCI indicates one of the more than one TCIstates activated by MAC CE.

For the CSI-RS configurations, a UE 502 may be configured with one ormore CSI-RS resource sets by an RRC message. For example, a gNB 560 maytransmit information including one or more CSI-RS resource setconfigurations, and the UE 502 receives the information. Each CSI-RSresource set may include one or more CSI-RS resources and thecorresponding CSI-RS resource indices.

For SRS configurations a UE 502 may be configured with one or more SRSresource sets by an RRC message. For example, a gNB 560 may transmitinformation including one or more SRS resource set configurations, andthe UE 502 receives the information. SRS resource set may be rephrasedas panel and SRS resource set index may be rephrased as panel index (orpanel ID).

In addition, a configuration of a transmission beam for SRS transmission(SRS-SpatialRelationInfo) may be configured. The configuration of atransmission beam for SRS may include a serving cell index andinformation on a reference signal resource (e.g. SS/PBCH block index,CSI-RS resource index, or SRS index (SRI)). For the case of indicationof a SRS resource index, an UL BWP index may also be included. Here, aUE 502 may use the same spatial domain transmission filter as follows:

-   -   1) The reception of a SS/PBCH block corresponding to the SS/PBCH        block index in a case that a reference signal resource indicates        SS/PBCH block index, or    -   2) The reception of a CSI-RS corresponding to the CSI-RS        resource index in a case that a reference signal resource        indicates the CSI-RS resource index, or    -   3) The transmission of an SRS corresponding to the SRS resource        index on the UL BWP in a case that a reference signal resource        indicates the SRS resource index and the UL BWP index.

FIG. 7 illustrates examples of multiple-beam based SRS transmission. InFIG. 7 (a), a parameter resourceMapping in the SRS resourceconfiguration startPosition is set to n0 and nrofSymbols is set to n2.Here, a parameter resourceMapping is included in an SRS resourceconfiguration (e.g., SRS-Config), and OFDM symbol location of the SRSresource within a slot including nrofSymbols (number of OFDM symbols),startPosition (value 0 refers to the last symbol, value 1 refers to thesecond last symbol, and so on). The configured SRS resource may or maynot exceed the slot boundary. In FIG. 7 (a), two SRS resources areconfigured within a slot.

In addition, a parameter SRS-SpatialRelationInfo may include more thanone reference resource indices. In this example, the number of referenceresource indices in SRS-SpatialRelationInfo is two. When CSI-RS resourceindex #1 and CSI-RS resource index #2 are included inSRS-SpatialRelationInfo, the spatial domain transmission filter for aCSI-RS #1 corresponding to the CSI-RS resource index #1 may be appliedto a SRS resource 701 and the spatial domain transmission filter for aCSI-RS #2 corresponding to the CSI-RS resource index #2 may be appliedto an SRS resource 702. In other words, by applying multiple referenceresource indices are configured for an SRS resource, multiple beams maybe applied to SRS resources within a slot.

Alternately, two SRS resource sets (e.g. SRS resource set #0 and SRSresource set #1) may be applied. The SRS resource set #0, as a parameterresourceMapping in the SRS resource configuration, startPosition is setto n1 and nrofSymbols is set to n1. For the SRS resource set #1, as aparameter resourceMapping in the SRS resource configuration,startPosition is set to n0 and nrofSymbols is set to n1. In this case,an SRS is transmitted on SRS resource 701 based on the first SRSresource set and an SRS is transmitted on SRS resource 707 based on thesecond SRS resource set. In this case, only one reference resource indexmay be included in SpatialRelationInfo, because one SRS resource isincluded in each SRS resource set and SpatialRelationInfo is associatedwith each SRS resource.

FIG. 7 (b) is another example of the multi-beam based SRS transmission.In FIG. 7 (b), a parameter resourceMapping in the SRS resourceconfiguration startPosition is set to n0 and nrofSymbols is set to n4. Aparameter SRS-SpatialRelationInfo may include two reference resourceindices (e.g., CSI-RS resource index #1 and CSI-RS resource index #2).As shown in FIG. 7 (b), the spatial domain transmission filter for aCSI-RS #1 corresponding to the CSI-RS resource index #1 may be appliedto SRS resources 711 and 712 and the spatial domain transmission filterfor a CSI-RS #2 corresponding to the CSI-RS resource index #2 may beapplied to SRS resource 713 and 714.

Which SRS resource each spatial domain transmission filter is applied to(e.g., the number of OFDM symbols, OFDM symbol index, or, start OFDMsymbol) may configured in SRS-SpatialRelationInfo, SRS-Config, and/orSRS resource set configuration (SRS-ResourceSet).

Alternately, the reference resource index may be SS/PBCH block index orSRS resource index. In this description, a UE 102 may receive theinformation including one reference signal resource index or two or morereference signal indices and receive information including an SRSresource configuration, and the UE 102 may transmit one or more SRS. Ifone reference signal resource is configured, the UE 102 may transmit anSRS on the based on the SRS resource configuration and the same spatialdomain transmission filter as a reference signal corresponding to theindicated reference resource. If two reference signal resource isconfigured, the UE 102 may transmit SRS(s) on the based on the SRSresource configuration. A spatial domain filter corresponding to areference signal resource index and a spatial domain filtercorresponding to another reference signal resource index are applied toSRS resource(s).

The reference resource index(es) may be activated by MAC-CE in a cell.In a case that the spatial domain transmission filter is activated byMAC-CE, multiple SRS-SpatialRelationInfo parameters may be configuredfor each SRS resource and one SRS-SpatialRelationInfo may be activatedby MAC-CE. Alternately, a parameter SpatialRelationInfo may beconfigured and multiple reference signal resource indices may beconfigured in the parameter SRS-SpatialRelationInfo.

The reference resource index(es) may be indicated by the DCI in a cell.In a case that the spatial domain transmission filter is indicated bythe DCI, more than one SRS-SpatialRelationInfo parameters may beactivated by MAC-CE or configured in RRC layer, and one of the activatedSRS-SpatialRelationInfo or the configured SRS-SpatialRelationInfo isindicated by the DCI (e.g., DCI format 0_1, 0_2, 1_1, 1_2, 2_3, or otherDCI formats).

As another example, one SRS resource set may be activated by MAC-CE in acell. An SRS on an SRS resource may be transmitted based on theactivated SRS resource set. The spatial domain transmission filter maybe applied based on the SRS resource configuration in the activated SRSresource set.

One SRS resource set may be activated by the DCI in a cell. In a casethat the spatial domain transmission filter is indicated by the DCI,more than one SRS resource set parameters are activated by MAC-CE orconfigured in RRC layer, and one of the activatedSRS-SpatialRelationInfo or the configured SRS-SpatialRelationInfo isindicated by the DCI (e.g. DCI format 0_1, 0_2, 1_1, 1_2, 2_3, or otherDCI formats).

Additionally or alternately, each codepoint of an SRS request field inthe DCI may be associated with an SRS resource set and/or anSRS-SpatialRelationInfo parameter.

Alternately, multiple SRS-SpatialRelationInfo parameters may beassociated a SRS resource, and each SRS-SpatialRelationInfo may beapplied to each SRS resource in a slot. In this case, a parameterSRS-SpatialRelationInfo may include only one reference resource index.

Alternately or additionally, separate information from SRSconfiguration, SRS spatial relation information, and SRS resource setconfiguration may be configured to indicate multiple transmission beams.

Alternately or additionally, the above schemes may be applied toaperiodic SRS, semi-persistent SRS, or periodic SRS. AnSRS-SpatialRelationInfo parameter may be separately activated by MAC CEor triggered by the DCI from the SRS resource set(s) and/or SRSresource(s).

FIG. 8 illustrates an example of multiple-beam/panel based PUSCHtransmission. A PUSCH transmission scheme may include codebook-basedtransmission configuration and non-codebook based transmissionconfiguration. A UE 102 may transmit a PUSCH on resources 801 and 802 byrepetition in a slot. The repetition may mean the resource allocation ofPUSCH is indicated to map PUSCH on resource 801 and the number ofrepetitions is 2 in this example.

An SRI field in the DCI format 0_1 or 0_2 may be used to indicate thespatial domain transmission filter. Information on two spatial domaintransmission filters may be indicated for PUSCH resources 801 and 802.The SRI field may indicate the SRS resource index, and the spatialdomain transmission filter for the SRS corresponding to the indicatedSRS resource index in the DCI. The UE 102 may apply the same spatialdomain transmission filter as the SRI-indicated SRS.

One example to use two spatial domain transmission filters for 801 and802 is two SRS-SpatialRelationInfo parameters may be indicated in theRRC for each SRS resource configuration. Alternately, a parameterSRS-SpatialRelationInfo may be configured for each SRS resource andmultiple reference signal indices may be included in the parameterSRS-SpatialRelationInfo.

A first case (Case 1) includes a single SRS resource and SRS spatialrelation information with multiple RS indices. The SRI field mayindicate an SRS resource index and the SRS resource associated with theSRS resource index may include a parameter SRS-SpatialRelationInfo.Additionally, two reference resource indices may be included in theparameter SRS-SpatialRelationInfo. When a SRI field indicates an SRSresource and two reference signal indices are included in theSRS-SpatialRelationInfo associated with the SRS indicated by the SRIfield in the DCI, a spatial domain transmission filter associated with areference signal index may be applied to a PUSCH 801 and a spatialdomain transmission filter associated with another reference signalindex may be applied to a PUSCH 802.

A second case (Case 2) includes a single SRS resource and multiplespatial relation information with a single RS index. The SRI field mayindicate an SRS resource index and the SRS resource associated with theSRS resource index may include multiple parametersSRS-SpatialRelationInfo. When an SRI field indicates an SRS resource,and two parameters SRS-SpatialRelationInfo are included in the SRSresource configuration associated with the SRS indicated by the SRIfield in the DCI, a spatial domain transmission filter associated with areference signal index in a parameter SRS-SpatialRelationInfo may beapplied to a PUSCH 801 and a spatial domain transmission filterassociated with a reference signal index another parameterSRS-SpatialRelationInfo may be applied to a PUSCH 802.

A third case (Case 3) includes a single SRS resource, single spatialrelation information, and multiple SRS resource set. The SRI field mayindicate combinations of an SRS resource index and an SRS resource setindex. For example, the SRI field may indicate combination #1 (an SRSindex #1 and an SRS resource set #1) and combination #2 (an SRS index #1and an SRS resource set #2). A UE 102 may apply a spatial domaintransmission filter based on the SRS index #1 in the SRS resource set #1to the PUSCH 801 and a spatial domain transmission filter based on theSRS index #1 in the SRS resource set #2.

In each SRS resource set, one or more SRS resource may be included, andeach SRS resource configuration may include a parameterSRS-SpatialRelationInfo. The parameter SRS-SpatialRelationInfo mayinclude only one RS index.

A fourth case (Case 4) includes multiple SRS resources, and singlespatial relation information for each SRS resource. The SRI field mayindicate two SRS resources, and each SRS resource configuration mayinclude a parameter SRS-SpatialRelationInfo. SRS-SpatialRelationInfo mayinclude one reference signal index. For example, the SRI field mayindicate combination of an SRS resource index #1 and an SRS resourceindex #2. A UE 102 may apply a spatial domain transmission filter basedon the SRS resource index #1 to the PUSCH 801 and a spatial domaintransmission filter based on the SRS resource index #1 in the SRSresource set #2.

Additionally or alternately, the multi-beam based PUSCH transmissionusing the SRI field in the DCI may be applied for codebook-basedtransmission or non-codebook based transmission. Additionally oralternately, the different schemes may be applied to codebook-basedtransmission and non-codebook based transmission. For example, forcodebook-based transmission, scheme of case 1 and case 2 may be applied,and for non-codebook based transmission, schemes of case 3 and case 4may be applied.

Additionally or alternately, RRC may configure multiple referenceresource indices, or SRS resources, and/or SRS resource sets. MAC CE mayactivate the reference resource indices, or SRS resources, and/or SRSresource sets. The codepoint of the SRI field in the DCI may beconfigured by RRC or activated by MAC-CE. A UE 102 may receive the DCIincluding the SRI field, and the SRI indicates not only an SRS resourceto determine the spatial domain transmission filter but also spatialdomain transmission filter for each repetition.

Alternately or additionally, separate information (e.g., uplink TCI (ULTCI)) from SRS configuration, SRS spatial relation information, and SRSresource set configuration may be defined to indicate multipletransmission beams. Alternately, the reference resource index may beSS/PBCH block index or SRS resource index.

Alternately or additionally, the nominal PUSCH and the repeated PUSCHmay be multiplexed in the time domain (TDM), in the frequency domain(FDM), or the spatial domain (SDM).

FIG. 9 illustrates examples of multiple-beam/panel based PUCCH. FIG. 9(a) illustrates PUCCH transmission without frequency hopping and FIG. 9(b) illustrates PUCCH transmission with frequency hopping. The PUCCHspatial relation information (PUCCH-SpatialRelationInfo) may beconfigured to apply in the RRC.

Alternately or additionally, the UL TCI states may be separatelyactivated by MAC CE or indicated by the DCI from the other parametersfor the PUSCH transmission (e.g. the PUSCH resource configuration, thenumber of repetitions, transmission scheme, and/or, other parameters inPUSCH-Config).

In FIG. 9 (a), the PUCCH resource configuration indicates PUCCH resource901, and the number of PUCCH repetitions is 2. The repeated PUCCH istransmitted on PUCCH resource 902. In FIG. 9 (a), the different spatialdomain transmission filters are applied to a nominal PUCCH transmittedon PUCCH resource 901 and a repeated PUCCH transmitted on PUCCH resource902. In FIG. 9 (b), the frequency hopping is applied to the PUCCHresource, and the different spatial domain transmission filters areapplied to the first hop on PUCCH resource 903 and the second hop onPUCCH resource 904.

A parameter PUCCH-SpatialRelationInfo may include more than onereference resource indices (e.g. CSI-RS resource index, SS/PBCH blockindex, and/or SRS resource index). The spatial domain transmissionfilter based on a reference signal corresponding to a reference resourceindex may be applied to the PUCCH on the PUCCH resource 901 or 903 andthe spatial domain transmission filter based on a reference signalcorresponding to another reference resource index may be applied to thePUCCH on the PUCCH resource 902 or 904.

Additionally or alternately, the MAC-CE may activate more than onereference resource indices. Additionally or alternately, the DCIindicates more than one reference resource indices.

Alternately, more than one parameter may be configured, and eachparameter PUCCH-SpatialRelationInfo may include only one referenceresource index. In this case, the spatial domain transmission filterbased on a reference signal indicated by a PUCCH-SpatialRelationInfo maybe applied to the PUCCH on the PUCCH resource 901 or 903 and the spatialdomain transmission filter based on a reference signal indicated byanother parameter PUCCH-SpatialRelationInfo may be applied to the PUCCHon the PUCCH resource 902 or 904.

The PUCCH-SpatialRelationInfo may be associated with PUCCH resourceconfiguration. Additionally or alternately, The PUCCH may or may not berepeated to apply multiple spatial domain transmission filters.

Additionally or alternately, the MAC-CE may activate onePUCCH-SpatialRelationInfo. Alternately, one or more reference resourceindices in PUCCH-SpatialRelationInfo may be activated by MAC-CE. The DCImay indicate one PUCCH-SpatialRelationInfo.

Alternately or additionally, an PUCCH-SpatialRelationInfo parameter maybe separately activated by MAC CE or indicated by the DCI from the otherparameters for the PUCCH transmission (e.g. the PUCCH resourceconfiguration, the PUCCH format configuration, the number ofrepetitions, inter/intra-slot hopping, and/or other parameters inPUCCH-Config).

FIG. 10 illustrates various components that may be utilized in a UE1002. The UE 1002 described in connection with FIG. 10 may beimplemented in accordance with the UE 102 described in connection withFIG. 1 . The UE 1002 includes a processor 1003 that controls operationof the UE 1002. The processor 1003 may also be referred to as a centralprocessing unit (CPU). Memory 1005, which may include read-only memory(ROM), random access memory (RAM), a combination of the two or any typeof device that may store information, provides instructions 1007 a anddata 1009 a to the processor 1003. A portion of the memory 1005 may alsoinclude non-volatile random access memory (NVRAM). Instructions 1007 band data 1009 b may also reside in the processor 1003. Instructions 1007b and/or data 1009 b loaded into the processor 1003 may also includeinstructions 1007 a and/or data 1009 a from memory 1005 that were loadedfor execution or processing by the processor 1003. The instructions 1007b may be executed by the processor 1003 to implement the methodsdescribed herein.

The UE 1002 may also include a housing that contains one or moretransmitters 1058 and one or more receivers 1020 to allow transmissionand reception of data. The transmitter(s) 1058 and receiver(s) 1020 maybe combined into one or more transceivers 1018. One or more antennas1022 a-n are attached to the housing and electrically coupled to thetransceiver 1018.

The various components of the UE 1002 are coupled together by a bussystem 1011, which may include a power bus, a control signal bus and astatus signal bus, in addition to a data bus. However, for the sake ofclarity, the various buses are illustrated in FIG. 10 as the bus system1011. The UE 1002 may also include a digital signal processor (DSP) 1013for use in processing signals. The UE 1002 may also include acommunications interface 1015 that provides user access to the functionsof the UE 1002. The UE 1002 illustrated in FIG. 10 is a functional blockdiagram rather than a listing of specific components.

FIG. 11 illustrates various components that may be utilized in a gNB1160. The gNB 1160 described in connection with FIG. 11 may beimplemented in accordance with the gNB 160 described in connection withFIG. 1 . The gNB 1160 includes a processor 1103 that controls operationof the gNB 1160. The processor 1103 may also be referred to as a centralprocessing unit (CPU). Memory 1105, which may include read-only memory(ROM), random access memory (RAM), a combination of the two or any typeof device that may store information, provides instructions 1107 a anddata 1109 a to the processor 1103. A portion of the memory 1105 may alsoinclude non-volatile random access memory (NVRAM). Instructions 1107 band data 1109 b may also reside in the processor 1103. Instructions 1107b and/or data 1109 b loaded into the processor 1103 may also includeinstructions 1107 a and/or data 1109 a from memory 1105 that were loadedfor execution or processing by the processor 1103. The instructions 1107b may be executed by the processor 1103 to implement the methodsdescribed herein.

The gNB 1160 may also include a housing that contains one or moretransmitters 1117 and one or more receivers 1178 to allow transmissionand reception of data. The transmitter(s) 1117 and receiver(s) 1178 maybe combined into one or more transceivers 1176. One or more antennas1180 a-n are attached to the housing and electrically coupled to thetransceiver 1176.

The various components of the gNB 1160 are coupled together by a bussystem 1111, which may include a power bus, a control signal bus and astatus signal bus, in addition to a data bus. However, for the sake ofclarity, the various buses are illustrated in FIG. 11 as the bus system1111. The gNB 1160 may also include a digital signal processor (DSP)1113 for use in processing signals. The gNB 1160 may also include acommunications interface 1115 that provides user access to the functionsof the gNB 1160. The gNB 1160 illustrated in FIG. 11 is a functionalblock diagram rather than a listing of specific components.

FIG. 12 is a block diagram illustrating one implementation of a UE 1202in which one or more of the systems and/or methods described herein maybe implemented. The UE 1202 includes transmit means 1258, receive means1220 and control means 1224. The transmit means 1258, receive means 1220and control means 1224 may be configured to perform one or more of thefunctions described in connection with FIG. 1 above. FIG. 10 aboveillustrates one example of a concrete apparatus structure of FIG. 12 .Other various structures may be implemented to realize one or more ofthe functions of FIG. 1 . For example, a DSP may be realized bysoftware.

FIG. 13 is a block diagram illustrating one implementation of a gNB 1360in which one or more of the systems and/or methods described herein maybe implemented. The gNB 1360 includes transmit means 1317, receive means1378 and control means 1382. The transmit means 1317, receive means 1378and control means 1382 may be configured to perform one or more of thefunctions described in connection with FIG. 1 above. FIG. 11 aboveillustrates one example of a concrete apparatus structure of FIG. 13 .Other various structures may be implemented to realize one or more ofthe functions of FIG. 1 . For example, a DSP may be realized bysoftware.

FIG. 14 is a block diagram illustrating one implementation of a gNB1460. The gNB 1460 may be an example of the gNB 160 described inconnection with FIG. 1 . The gNB 1460 may include a higher layerprocessor 1423, a DL transmitter 1425, a UL receiver 1433, and one ormore antenna 1431. The DL transmitter 1425 may include a PDCCHtransmitter 1427 and a PDSCH transmitter 1429. The UL receiver 1433 mayinclude a PUCCH receiver 1435 and a PUSCH receiver 1437.

The higher layer processor 1423 may manage physical layer's behaviors(the DL transmitter's and the UL receiver's behaviors) and providehigher layer parameters to the physical layer. The higher layerprocessor 1423 may obtain transport blocks from the physical layer. Thehigher layer processor 1423 may send/acquire higher layer messages suchas an RRC message and MAC message to/from a UE's higher layer. Thehigher layer processor 1423 may provide the PDSCH transmitter transportblocks and provide the PDCCH transmitter transmission parameters relatedto the transport blocks.

The DL transmitter 1425 may multiplex downlink physical channels anddownlink physical signals (including reservation signal) and transmitthem via transmission antennas 1431. The UL receiver 1433 may receivemultiplexed uplink physical channels and uplink physical signals viareceiving antennas 1431 and de-multiplex them. The PUCCH receiver 1435may provide the higher layer processor 1423 UCI. The PUSCH receiver 1437may provide the higher layer processor 1423 received transport blocks.

FIG. 15 is a block diagram illustrating one implementation of a UE 1502.The UE 1502 may be an example of the UE 102 described in connection withFIG. 1 . The UE 1502 may include a higher layer processor 1523, a ULtransmitter 1551, a DL receiver 1543, and one or more antenna 1531. TheUL transmitter 1551 may include a PUCCH transmitter 1553 and a PUSCHtransmitter 1555. The DL receiver 1543 may include a PDCCH receiver 1545and a PDSCH receiver 1547.

The higher layer processor 1523 may manage physical layer's behaviors(the UL transmitter's and the DL receiver's behaviors) and providehigher layer parameters to the physical layer. The higher layerprocessor 1523 may obtain transport blocks from the physical layer. Thehigher layer processor 1523 may send/acquire higher layer messages suchas an RRC message and MAC message to/from a UE's higher layer. Thehigher layer processor 1523 may provide the PUSCH transmitter transportblocks and provide the PUCCH transmitter 1553 UCI.

The DL receiver 1543 may receive multiplexed downlink physical channelsand downlink physical signals via receiving antennas 1531 andde-multiplex them. The PDCCH receiver 1545 may provide the higher layerprocessor 1523 DCI. The PDSCH receiver 1547 may provide the higher layerprocessor 1523 received transport blocks.

As described herein, some methods for the DL and/or UL transmissions maybe applied (e.g., specified). Here, the combination of one or more ofthe some methods described herein may be applied for the DL and/or ULtransmission. The combination of the one or more of the some methodsdescribed herein may not be precluded in the described systems andmethods.

It should be noted that names of physical channels described herein areexamples. The other names such as “NRPDCCH, NRPDSCH, NRPUCCH andNRPUSCH,” “new Generation-(G)PDCCH, GPDSCH, GPUCCH and GPUSCH” or thelike can be used.

The term “computer-readable medium” refers to any available medium thatcan be accessed by a computer or a processor. The term“computer-readable medium,” as used herein, may denote a computer-and/or processor-readable medium that is non-transitory and tangible. Byway of example and not limitation, a computer-readable orprocessor-readable medium may comprise RAM, ROM, EEPROM, CD-ROM or otheroptical disk storage, magnetic disk storage or other magnetic storagedevices, or any other medium that can be used to carry or store desiredprogram code in the form of instructions or data structures and that canbe accessed by a computer or processor. Disk and disc, as used herein,includes compact disc (CD), laser disc, optical disc, digital versatiledisc (DVD), floppy disk and Blu-ray® disc where disks usually reproducedata magnetically, while discs reproduce data optically with lasers.

It should be noted that one or more of the methods described herein maybe implemented in and/or performed using hardware. For example, one ormore of the methods described herein may be implemented in and/orrealized using a chipset, an application-specific integrated circuit(ASIC), a large-scale integrated circuit (LSI) or integrated circuit,etc.

Each of the methods disclosed herein comprises one or more steps oractions for achieving the described method. The method steps and/oractions may be interchanged with one another and/or combined into asingle step without departing from the scope of the claims. In otherwords, unless a specific order of steps or actions is required forproper operation of the method that is being described, the order and/oruse of specific steps and/or actions may be modified without departingfrom the scope of the claims.

It is to be understood that the claims are not limited to the preciseconfiguration and components illustrated above. Various modifications,changes and variations may be made in the arrangement, operation anddetails of the systems, methods and apparatus described herein withoutdeparting from the scope of the claims.

A program running on the gNB 160 or the UE 102 according to thedescribed systems and methods is a program (a program for causing acomputer to operate) that controls a CPU and the like in such a manneras to realize the function according to the described systems andmethods. Then, the information that is handled in these apparatuses istemporarily stored in a RAM while being processed. Thereafter, theinformation is stored in various ROMs or HDDs, and whenever necessary,is read by the CPU to be modified or written. As a recording medium onwhich the program is stored, among a semiconductor (for example, a ROM,a nonvolatile memory card, and the like), an optical storage medium (forexample, a DVD, a MO, a MD, a CD, a BD and the like), a magnetic storagemedium (for example, a magnetic tape, a flexible disk and the like) andthe like, any one may be possible. Furthermore, in some cases, thefunction according to the described systems and methods described hereinis realized by running the loaded program, and in addition, the functionaccording to the described systems and methods is realized inconjunction with an operating system or other application programs,based on an instruction from the program.

Furthermore, in a case where the programs are available on the market,the program stored on a portable recording medium can be distributed orthe program can be transmitted to a server computer that connectsthrough a network such as the Internet. In this case, a storage devicein the server computer also is included. Furthermore, some or all of thegNB 160 and the UE 102 according to the systems and methods describedherein may be realized as an LSI that is a typical integrated circuit.Each functional block of the gNB 160 and the UE 102 may be individuallybuilt into a chip, and some or all functional blocks may be integratedinto a chip. Furthermore, a technique of the integrated circuit is notlimited to the LSI, and an integrated circuit for the functional blockmay be realized with a dedicated circuit or a general-purpose processor.Furthermore, if with advances in a semiconductor technology, atechnology of an integrated circuit that substitutes for the LSIappears, it is also possible to use an integrated circuit to which thetechnology applies.

Moreover, each functional block or various features of the base stationdevice and the terminal device used in each of the aforementionedembodiments may be implemented or executed by a circuitry, which istypically an integrated circuit or a plurality of integrated circuits.The circuitry designed to execute the functions described in the presentspecification may comprise a general-purpose processor, a digital signalprocessor (DSP), an application specific or general applicationintegrated circuit (ASIC), a field programmable gate array (FPGA), orother programmable logic devices, discrete gates or transistor logic, ora discrete hardware component, or a combination thereof. Thegeneral-purpose processor may be a microprocessor, or alternatively, theprocessor may be a conventional processor, a controller, amicrocontroller, or a state machine. The general-purpose processor oreach circuit described herein may be configured by a digital circuit ormay be configured by an analogue circuit. Further, when a technology ofmaking into an integrated circuit superseding integrated circuits at thepresent time appears due to advancement of a semiconductor technology,the integrated circuit by this technology is also able to be used.

CROSS REFERENCE

This Nonprovisional application claims priority under 35 U.S.C. § 119 onprovisional Application No. 63,000,876 on Mar. 27, 2020, the entirecontents of which are hereby incorporated by reference.

What is claimed is:
 1. A user equipment (UE) comprising: receivingcircuitry configured to receive: first information including a pluralityof the reference signal resource indices, and second informationincluding a physical uplink control channel (PUCCH) configuration; andtransmitting circuitry configured to transmit a PUCCH, wherein a firstspatial domain transmission filter is applied based on a first referencesignal resource index in the plurality of reference signal resourceindices, and a second spatial domain transmission filter is appliedbased on a second reference signal resource index in the plurality ofreference signal resource indices.
 2. The UE of claim 1, wherein eachreference signal index indicated in the first information is one of anSRS resource index, a channel state information-reference signal(CSI-RS) index, and a synchronization signal and physical broadcastchannel (SS/PBCH) block.
 3. A base station apparatus comprising:transmitting circuitry configured to transmit: first informationincluding a plurality of the reference signal resource indices, andsecond information including a physical uplink control channel (PUCCH)configuration; and receiving circuitry configured to receive a PUCCH,wherein a first spatial domain transmission filter is applied based on afirst reference signal resource index in the plurality of referencesignal resource indices, and a second spatial domain transmission filteris applied based on a second reference signal resource index in theplurality of reference signal resource indices.
 4. The base stationapparatus of claim 3, wherein each reference signal index indicated inthe first information is one of an SRS resource index, a channel stateinformation-reference signal (CSI-RS) index, and a synchronizationsignal and physical broadcast channel (SS/PBCH) block.
 5. Acommunication method of a user equipment (UE) comprising: receivingfirst information including a plurality of the reference signal resourceindices; receiving second information including a physical uplinkcontrol channel (PUCCH) configuration; transmitting a PUCCH, wherein afirst spatial domain transmission filter is applied based on a firstreference signal resource index in the plurality of reference signalresource indices, and a second spatial domain transmission filter isapplied based on a second reference signal resource index in theplurality of reference signal resource indices.
 6. (canceled)